Our elegant Annie 1-pc toilet is equipped with A.S.T siphon, bottom inlet, vertical outlet, Easy Clean glaze, a 4.8L flush and silent seat. The toilet consists of W373-B231-M1 bowl and G001-0101-M1 seat. This toilet features a 305mm pit, but is also available with a 400mm pit (W373-1241-M1,consisting of W373-B241-M1 bowl and G001-0101-M1 seat).